What is the cheapest airline that flies from Seoul Gimpo Intl to Seattle/Tacoma Intl?

Japan Airlines and EVA Air are the most popular carriers operating from Seoul Gimpo Intl to Seattle/Tacoma Intl

When did momondo last update prices for flights from Seoul Gimpo Intl Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Seoul Gimpo Intl Airport to Seattle/Tacoma Intl Airport refresh daily.

How old do you have to be to fly from Seoul Gimpo Intl Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seoul Gimpo Intl Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$435 Cheap Flights from Seoul Gimpo Intl Airport to Seattle in 2026

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Find the cheapest flights from Seoul Gimpo Intl Airport to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:40 pm - 2:25 pm

GMP

SEA

17h 45m

1 stop

4:30 pm - 11:05 am

SEA

GMP

26h 35m

1 stop

$840ANA

Mon, Jun 8 - Thu, Aug 27

8:10 am - 6:32 pm

GMP

SEA

26h 22m

2 stops

5:40 am - 12:55 pm

SEA

GMP

39h 15m

2 stops

$847Multiple Airlines

Tue, Jun 30 - Mon, Aug 24

12:40 pm - 2:25 pm

GMP

SEA

17h 45m

1 stop

4:40 pm - 11:20 am

SEA

GMP

26h 40m

1 stop

$877ANA

Mon, Sep 14 - Fri, Oct 30

7:55 pm - 2:25 pm

GMP

SEA

34h 30m

1 stop

4:30 pm - 11:05 am

SEA

GMP

26h 35m

1 stop

$879ANA

Sun, Jun 7 - Fri, Aug 28

12:40 pm - 2:25 pm

GMP

SEA

17h 45m

1 stop

4:30 pm - 11:05 am

SEA

GMP

26h 35m

1 stop

$890ANA

Tue, Apr 7 - Thu, Apr 23

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

4:30 pm - 6:35 pm

SEA

GMP

34h 05m

1 stop

$892ANA

Mon, Jul 13 - Mon, Aug 3

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

4:30 pm - 6:35 pm

SEA

GMP

34h 05m

1 stop

$893ANA

Tue, Jul 14 - Wed, Oct 14

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

4:30 pm - 6:35 pm

SEA

GMP

34h 05m

1 stop

$894ANA

Wed, May 6 - Mon, Sep 14

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

8:38 am - 10:20 pm

SEA

GMP

21h 42m

2 stops

$922ANA

Wed, May 6 - Mon, Sep 14

12:40 pm - 2:25 pm

GMP

SEA

17h 45m

1 stop

4:30 pm - 6:35 pm

SEA

GMP

34h 05m

1 stop

$949ANA

Thu, Apr 23 - Mon, Apr 27

ANA flights from Seoul Gimpo Intl Airport to Seattle

Our best ANA deals on Seoul Gimpo Intl Airport to Seattle flight tickets

ANA

Jun 8

GMP12:40 pmSeoul Gimpo Intl

17h 45m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Aug 27

SEA4:30 pmSeattle/Tacoma Intl

26h 35m

1 stop

GMP11:05 amSeoul Gimpo Intl

$840

ANA

Sep 14

GMP12:40 pmSeoul Gimpo Intl

17h 45m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Oct 30

SEA4:40 pmSeattle/Tacoma Intl

26h 40m

1 stop

GMP11:20 amSeoul Gimpo Intl

$877

ANA

Jun 7

GMP7:55 pmSeoul Gimpo Intl

34h 30m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Aug 28

SEA4:30 pmSeattle/Tacoma Intl

26h 35m

1 stop

GMP11:05 amSeoul Gimpo Intl

$879

Japan Airlines flights from Seoul Gimpo Intl Airport to Seattle

Our best Japan Airlines deals on Seoul Gimpo Intl Airport to Seattle flight tickets

Japan Airlines

Apr 3

GMP8:00 amSeoul Gimpo Intl

18h 35m

1 stop

SEA10:35 amSeattle/Tacoma Intl

Apr 16

SEA1:15 pmSeattle/Tacoma Intl

29h 25m

1 stop

GMP10:40 amSeoul Gimpo Intl

$1,134

Japan Airlines

Sep 14

GMP12:05 pmSeoul Gimpo Intl

18h 54m

2 stops

SEA2:59 pmSeattle/Tacoma Intl

Oct 30

SEA8:41 amSeattle/Tacoma Intl

21h 24m

2 stops

GMP10:05 pmSeoul Gimpo Intl

$1,143

Japan Airlines

Apr 3

GMP8:00 amSeoul Gimpo Intl

18h 35m

1 stop

SEA10:35 amSeattle/Tacoma Intl

Apr 14

SEA1:15 pmSeattle/Tacoma Intl

29h 25m

1 stop

GMP10:40 amSeoul Gimpo Intl

$1,161

momondo Fare Finder

Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 6/8

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Thu 8/27

4:30 pm-11:05 am

1 stop26h 35m

$840

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 6/30

8:10 am-6:32 pm

2 stops26h 22m

Seattle/Tacoma Intl

Mon 8/24

5:40 am-12:55 pm

2 stops39h 15m

$847

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 9/14

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Fri 10/30

4:40 pm-11:20 am

1 stop26h 40m

$877

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sun 6/7

7:55 pm-2:25 pm

1 stop34h 30m

Seattle/Tacoma Intl

Fri 8/28

4:30 pm-11:05 am

1 stop26h 35m

$879

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 4/7

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Thu 4/23

4:30 pm-11:05 am

1 stop26h 35m

$890

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 7/13

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Mon 8/3

4:30 pm-6:35 pm

1 stop34h 05m

$892

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 7/14

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Wed 10/14

4:30 pm-6:35 pm

1 stop34h 05m

$893

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 5/6

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Mon 9/14

4:30 pm-6:35 pm

1 stop34h 05m

$894

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 5/6

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Mon 9/14

8:38 am-10:20 pm

2 stops21h 42m

$922

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Thu 4/23

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Mon 4/27

4:30 pm-6:35 pm

1 stop34h 05m

$949

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seoul Gimpo Intl Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Seoul Gimpo Intl Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $706. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Seoul Gimpo Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $884.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Seoul Gimpo Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $733 when looking at flights departing in the evening. Flights to Seattle are more costly in the afternoon, with an average ticket price of $748. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Seoul Gimpo Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul Gimpo Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seoul Gimpo Intl Airport to Seattle (GMP to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul Gimpo Intl Airport to Seattle

Fastest flight time	18h 35m
Direct flights	None

The fastest flight from Seoul Gimpo Intl Airport to Seattle takes 18h 35m

There are no direct flights from Seoul Gimpo Intl Airport to Seattle. There are no popular flight routes from Seoul Gimpo Intl Airport to Seattle.

Search flight deals

How far is Seoul Gimpo Intl to Seattle/Tacoma Intl by plane?
The distance between Seoul Gimpo Intl and Seattle/Tacoma Intl is about 5173.4 mi. In terms of flight time, this usually takes a little over 18h 35m.
When did momondo last update prices for flights from Seoul Gimpo Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Seoul Gimpo Intl Airport to Seattle/Tacoma Intl Airport refresh daily.
How old do you have to be to fly from Seoul Gimpo Intl Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seoul Gimpo Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Redmond

Marysville

Puyallup

Cle Elum

Lakewood

Tukwila

Federal Way

Fife

Westport

Centralia

Kirkland

Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seoul to Seattle with flexible booking policies on momondo?

Flights from Seoul to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seoul to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seoul to Seattle.

I’m not ready to book a flight from Seoul to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Seoul and alert you when they change.